Provides information about the event that caused the dropdown menu to display.
| localMousePosition | The position of the mouse if the event that triggered the dropdown menu to display was a mouse event. |
| modifiers | The modifier keys that were pressed if those keys triggered the dropdown menu to display of the dropdown menu. For example, Alt, Ctrl, Shift, Windows, and Command. |
| mousePosition | The mouse position expressed in the global coordinate system if the event that triggered the dropdown menu to display was a mouse event. |
| DropdownMenuEventInfo | Initialized menu event info with event provided. |